Questions about monitoring server hardware and software performance, or network performance.

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1answer
223 views

How to collect the performance data of a server during an unreachable/down period using Nagios?

Some time services and host stop responding due to a poor server performance. I mean, if for some reason (could be lot of concurrency services access, a expensive backup execution on the server or ...
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0answers
28 views

Get Value of SMEM using PHP

I'm using smem command to know how much RAM each user is using. It also display the Count column. As far as my knowledge is concerned, Count column is a value PHP-FPM pm.start_servers and PHP-FPM ...
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0answers
48 views

IIS httpTracing setting has no effect

I'm trying to troubleshoot some performance issues we are having on a specific ASP.NET page with Microsoft's Perfecto Tool on IIS 7.5. Perfecto uses the ETW hooks build in to IIS to report on specific ...
4
votes
1answer
439 views

ZFS ARC size vs target size

I am trying to understand the inner workings of the ZFS ARC. However, I am confused with several things: actual (zfs:0:arcstats:size) vs target size (zfs:0:arcstats:c). I understand that actual size ...
0
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1answer
48 views

How can I monitor what are the most frequently accessed URL's on my servers? [closed]

What enterprise software can I use to monitor the most frequently accessed URL's on my servers? I'm familiar with load testing software, but need something that can monitor real loads. Also, software ...
2
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2answers
32 views

How can I set the Interval of a performance protocol under 1 second with Windows Server 2003?

I want to determine the utilization of the NICs of our server, while very small videos are transferred. The smallest interval which I can set in Performance Monitor is a second. Unfortunately, I ...
9
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3answers
3k views

Determining VM doing I/O on a Hyper-V host

How do I find out which VM is responsible for the majority of the I/O I see with Hyper-V? The situation: I do have Hyper-V hosts with a number of VMs (around 30 per host) where I occasionally see ...
2
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1answer
289 views

What is the (*) in Windows Performance Counters

Take the following counter for example: \LogicalDisk(*)\% Free Space Where can I find what can be plugged in place of the *? I know sometimes it's _global_ and other times it can be _total_. I ...
4
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2answers
156 views

Hyper-V Performance Monitoring

Background I am very new to the world of server-based virtualization (I've been running VM's on my desktops for years). The organization I work for has recently purchased a Dell server that will be ...
0
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1answer
352 views

which performance counters mainly matter for windows server performance?

We have a website which is sometimes performing slowly, and / or completely hangs. I have setted up temporarily the default system performance data collector in Performance Monitor, to see if this ...
0
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1answer
59 views

Linux user permissions setup for monitoring tool

We have external monitoring tool which will access our linux machines through SSH and will read top/ping/netstat/disk activity. As i am creating separated ssh key and separated user for this purpose i ...
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0answers
76 views

Live access logging for many nginx websites

I'm running a couple of dozen sites on a server for a client. This number moves around pretty fluidly as they test ideas and we have a flexible configuration to host things. The problem comes in that ...
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1answer
32 views

Before buying it, how can I tell if a storage array makes certain performance counters available over SNMP?

I've noticed that documentation for SNMP reporting that is built-in to devices (i.e. doesn't need an agent running in an OS) usually doesn't include a list of performance counters that are available ...
1
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1answer
1k views

Active Sessions Performance Counter for Web Server

I would like to monitor the number of active sessions for my ASP.Net 4.0. It is hosted on IIS7 Windows 2008 Server. When I looked at the Performance counter, I saw many instances. How could I know ...
0
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1answer
25 views

How to customize Windows “Performance Monitor”?

I'm wondering if that's possible to set a customized action counter that is not listed as one of the counters? e.g. a batch script that measure a time for running my application, and then notify the ...
1
vote
1answer
148 views

How to graph the web server load by using the nginx logs with response time?

I want to analyse if certain type of requests do have an important impact on the server. My backend service is behind nginx which logs all requests including the time needed to get the response. Now ...
1
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1answer
147 views

Any way to get munin plugin output to dstat?

The two tools are great with plugins and many available out of the box metrics. I was wondering if there is a way to get output of munin into dstat or a similar tool (real time output vs munin's ...
0
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1answer
1k views

In Windows 7, why can't I use perfmon against a remote server?

I am on Windows 7 and trying to run perfmon against Windows 2003 and Windows 2008 servers. I am running into the same issue with all remote machines. When creating a data collector set, I specify a ...
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2answers
85 views

How can I test my server response time? [closed]

I'd like to test my server response time and how fast my website loads. How can I do it?
0
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1answer
122 views

Server processes stall for a few seconds, how can we find the issue?

We have a fairly large VPS running our custom server code (not web servers but game servers), at random times the server seems to stall for a few seconds, how can we track the down the thread / ...
0
votes
1answer
68 views

How can I replicate performance counter setups in an Azure WorkerRole?

I am trying to collect performance statistics on our Azure application. Up till now, our process has been to set up the roles with RDP enabled, connect, manually set up the performance counters, log ...
-1
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2answers
55 views

server busy threshold? [closed]

i have a server with 512MB RAM running mysql and apache service. I have joomla site inside my server. I want to ask, is there a brief threshold limit of RAM when the server will be stated as busy? ...
1
vote
1answer
323 views

Guide to Apache performance monitoring and capacity planning? [closed]

Can someone point me at a guide on performance monitoring and capacity management of an Apache web farm? Other questions suggest some tools, but I'm also interested in understanding what the various ...
0
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2answers
823 views

Perfmon counters for monitoring general IIS/MSSQL server activity

I have a virtual server with a hosting company so CPU and RAM are limited. I need to watch load/performance over time to know when to upgrade the server. The site runs multiple ASP.NET apps as well ...
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0answers
178 views

Top shows md127_raid1 with high CPU load?

I have a new server, when I use "top" to see busy processes I usually see md127_raid1 either at the top or close to the top What is this process doing? How can I easily verify that the raid is ...
0
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1answer
256 views

View the performance counters I have added to a Data Collector set after creation on Windows Server 2008 R2

I have been working on creating a Data Collector Set to use to collect relevant performance information for an application my team is developing. I am using Performance Monitor on a Windows 2008 R2 ...
2
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1answer
1k views

Using Perfmon on Windows Server 2008 R2 Which counter value should be used for physical memory usage?

I am attempting to use Performance Monitor to set up a relevant User Defined Dataset on a Windows 2008 R2 Server. This is to track the performance costs incurred by an application that my team is ...
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2answers
610 views

How does CPU consumption look like from a VM on a heavily use VM Host?

I know I could test this, but I don't have the time right now to setup pristine test conditions to learn something that should be in documented form - and that I cannot find in an authoritative form. ...
0
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1answer
1k views

How to tell a Performance Monitor Data Collector Set to regularly generate Reports?

In a nutshell, my goal is to do a long-time recording of several performance counters. My steps I took until now were: Some days ago I've created several user-defined Data Collector Sets in Windows ...
2
votes
3answers
217 views

How do I determine the number of seeks performed on Linux?

I have two programs that write to my servers disk. One I wrote, it does linear writes, it's writing data quickly. Another I'm benchmarking, it's writing data at a 3rd of the speed. It doesn't do much ...
0
votes
1answer
191 views

ASP.NET Applications WMI class not found

I'm trying to instrument ASP.NET cache behavior on a web cluster by accessing the counters in the WMI class, Win32_PerfFormattedData_ASPNET_ASPNETApplications. 2 of my servers have this class, but 1 ...
0
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1answer
347 views

High response time with pingdom

I have a server hosted at my end, I am monitoring the server with pingdom and also my router. Strange thing is the response time towards the router is fine, but when the traffic flows towards the ...
10
votes
2answers
713 views

What's difference between monitoring, tracing and profiling?

I have seen these three words showing up a lot, but don't understand the exact differences between them. For example, collecting CPU utilisation is often called profiling and can also fall into ...
0
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2answers
459 views

save Performance Monitor settings

I have added several counters to Window 2008 Performance Monitor to monitor web application. When I restart server or close Server Manager console I loose all added monitor. I do not see a way to save ...
1
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1answer
411 views

Debugging I/O issues on a linux server

What are some ways to debug I/O issues on a linux server? I've been using: # nohup top -b -d 10 > /var/log/top.log & # nohup iotop -b -d 5 -o -t > /var/log/iotop.log & PS: hardware ...
1
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2answers
346 views

Live monitoring on web server logs by tailing the webserver access log

I am looking for a way to find who causes high load on my nginx web server but I do have too many requests per minutes to figure it out which one is the real cause. I want a solution that would work ...
2
votes
3answers
4k views

Network bandwidth usage per process Windows Server 2003

Is there freely available analog from Microsoft to monitor network bandwidth usage per process on Windows Server 2003 as this is implemented with Resource Monitor on W2k8? What I need to know is how ...
-1
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1answer
67 views

Ressourcemonitor Windows Server 2008 R2

Got a question about monitoring a process with the ressource monitor. I want to monitor the cpu usage and the memory usage of a process. Also I want to monitor the total cpu usage. But there are a ...
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2answers
483 views

OpenTSDB metrics using data from sar, vmstat and iostat logs

I recently started exploring OpenTSDB for monitoring a cluster that we have in our development environment. As a newbie, I have not delved deep into it, but was wondering if anyone successfully used ...
0
votes
1answer
735 views

Huge CS value in #vmstat - what does it mean?

Here is the output for #vmstat for my VPS (Parallels virtualization): procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------ r b swpd free buff cache si so ...
1
vote
1answer
173 views

What does this blktrace output mean?

I run blktrace and get lines like the following: 8,0 0 4 0.000016614 783 P N [kjournald] What does the N stand for? The field it's in is supposed to indicate read or write ...
3
votes
1answer
267 views

Perfmon data into SQL

Sorry for the wall of text below. At my workplace we have quite a few Exchange servers and supporting Domain Controllers, all currently being monitored by SCOM. I've setup certain monitoring elements ...
1
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0answers
61 views

How can I get a windows server to collate and email 4 daily reports/graphs for server performance

I run a windows 2008 webserver and would like to setup the most basic performance monitoring in the world. What i would like is: a plot of ASP.Net request time for each w3wp process for a 24hour ...
2
votes
1answer
2k views

Running perfmon continuously with periodic reports

I have a question very similar to this one, but I want to continuously run perfmon, during reboots and throughout the day. Further, I'd like to generate a perfmon report every 10 mins or so. The ...
2
votes
1answer
104 views

Chef / performance data

I am looking into making performance data like page response time integrated with Chef. Does anyone has a clue what would be the starting point? I have already deployed Chef, I have enabled ...
0
votes
1answer
79 views

Restore Perfmon Action/View Menus after hiding?

In Microsoft Windows Server 2003 Standard Edition, Service Pack 2: Start > Run... > perfmon Select menu View > Customize... Uncheck option "Standard menus (Action and View)" Select button "OK" How ...
1
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1answer
141 views

why dstat failed with --tcp option?

why --tcp option failed? should i install some package? if yes, which package i should install? this question is not the same as ...
3
votes
3answers
709 views

How to find virtualization performance bottlenecks?

We have recently started moving our C++ build server(s) from real machines into VMs. (MS Hyper-V) We have some performance issues that I've currently no idea how to address. We have: Test-Box - ...
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votes
1answer
382 views

Ubuntu program RAM and CPU OID

Running on Ubuntu. I need to monitor my program CPU and RAM , my prefer way is to monitor by SNMP. Does someone know the OID for program CPU and RAM(not total)? If there isnt so what is the simple ...
1
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1answer
478 views

Why is ASP.NET not in the performance monitor?

I have a Windows 2008 R2 Service Pack 1 server. It's virtual, not that that should make any difference. It's only purpose in life is running IIS 7 and it does that quite nicely. However, when I go ...